This is a knurled thread protector made from 17-4 stainless steel that fits the ops 12, aem and OCM pattern muzzle devices. It will also fit the OTB, OTB-MB/FH, PTB and MWA 1 piece adapters. Available in black or raw heat treat.
OTTER CREEK LABS OPS/AE/OC THREAD PROTECTOR
SKU: OTTER CREEK LABS OPS/AE/OC THREAD PROTECTOR -MULTI Category: Rifle Accessories
Black Nitride, Raw Heat Treat
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